Applicable to Cornelius only, recodifies GS 160A-394, as GS 160D-917 (concerning the ability of a city, by ordinance, to establish and enforce zoning regulations for residential dwellings occupied on a vacation rental or other transient occupancy basis). Also makes a technical change to the statute. Sets this act to expire on December 31, 2031. Provides that the act does not affect or repeal any ordinance that was adopted under a city's general police powers or zoning authority prior to the enactment of this act.